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Unfortunately there is no easy, or inexpensive way to do this on your vehicle. Chrysler decided to make fuel sending unit that contains the fuel pressure regulator, the fuel filter, and the fuel pump along with the level sending unit all together and located it inside of the fuel tank. The whole tank has to be dropped out of the bottom of the van and the whole assembly changed.
That the sending unit on top of pump. Fuel pressure regulaters are on the fuel log witch is generally on top of engine at one end of the log or other with a vacuum line attached to it. There is also a fuel pump relay in the relay panel on passenger side on wheel well under hood. Pressure regulator bad or vacu leak.
Are you getting at least 12 volts to the harness on the pump and also is it grounded good? Have you checked the fuse for the fuel pump and the fuel pump relay? Is the ASD relay coming on when you turn the switch to run position? Several more things to check to solve your no start condition.
Hey Jim,I see that it is showing 2 types at auto part stores.You can see the return line on the one with it,the way to find out is when you change you will see.Not good to buy in advance,may have to order.
Usually a pump with a return will have a separate connection to go from the pump back to the cell. If yours has that connection ,I would put the return line back to the cell on it. A return line is nothing more than excess fuel being returned to the cell.
The sending unit is an integral part of the fuel pump assembly in the vans WITHOUT stow and go seats. The assembly is located in the fuel tank. Vans with the stow and go seats will have the sending unit in the tank also. But it will not be an integral part of the fuel pump.
The Fuel Level Sending Unit, or Fuel Level Sensor, is located in your gas tank with the Fuel Pump Module. The fuel gauge sending unit (fuel level sensor) is attached to the side of the fuel pump module. The sending unit consists of a float, an arm, and a variable resistor track (card).
The Fuel Pressure Regulator is located within fuel pump module. The fuel pressure regulator controls fuel system pressure. The PCM cannot detect a clogged fuel pump inlet filter, clogged in-line fuel filter, or a pinched fuel supply or return line. However, these could result in a rich or lean condition causing the PCM to store an oxygen sensor or fuel system diagnostic trouble code.
Both of these sensors are connected with the Fuel Pump Module. Here is a diagram:
The regulator is in the fuel tank. You must drop the tank to get to the system It is part of the fuel pump/fuel pressure regulator/fuel level sending unit. If just changing the regulator which you can,make sure you install new o-rings, put a little clean gas on them to install. Cheaper than a new fuel pump.